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飞书WebSocket客户端服务

企业级飞书事件订阅WebSocket客户端,提供可靠的连接管理、自动重连和策略模式事件处理。

🚀 新特性:极简API - 一行代码完成服务注册,开箱即用!

✨ 核心特性

  • 🚀 极简API - 一行代码完成服务注册,开箱即用
  • 🔄 智能连接管理 - 自动重连、心跳检测、状态监控
  • 🫀 心跳消息处理 - 支持飞书 heartbeat 消息类型,实时连接状态监控
  • 🚀 高性能消息处理 - 异步处理、消息队列、并行执行
  • 🎯 策略模式事件处理 - 可扩展的事件处理器架构
  • 🔌 事件拦截器 - 支持在事件处理前后插入自定义逻辑(日志、遥测、限流等)
  • 🛡️ 企业级稳定性 - 完善的错误处理、资源管理、日志记录
  • ⚙️ 灵活配置 - 支持配置文件、代码配置和建造者模式
  • 📊 监控友好 - 详细的事件通知、性能指标、心跳统计
  • 🛡️ 错误分类处理 - 区分可恢复和不可恢复错误
  • 🛡️ 认证失败详细追踪 - 按错误码分类认证失败原因,统计失败次数和时间
  • 🔧 资源管理优化 - 实现 IHostedService 生命周期管理,避免资源泄漏

🚀 快速开始

1. 安装NuGet包

bash
dotnet add package Mud.Feishu.WebSocket

2. 最简配置(一行代码)

Program.cs 中:

csharp
using Mud.Feishu.WebSocket;

var builder = WebApplication.CreateBuilder(args);

// 先注册多应用支持
builder.Services.AddFeishuApp(builder.Configuration);

// 一行代码注册WebSocket服务(需要至少一个事件处理器)
builder.Services.CreateFeishuWebSocketServiceBuilder(builder.Configuration, "default")
    .AddHandler<ReceiveMessageEventHandler>()
    .Build();

var app = builder.Build();
app.Run();

3. 完整配置(添加事件处理器)

csharp
// 先注册多应用支持
builder.Services.AddFeishuApp(builder.Configuration);

// 从配置文件注册并添加事件处理器
builder.Services.CreateFeishuWebSocketServiceBuilder(builder.Configuration, "default")
    .AddHandler<ReceiveMessageEventHandler>()
    .AddHandler<UserCreatedEventHandler>()
    .Build();

var app = builder.Build();
app.Run();

4. 配置选项

json
{
  "FeishuApps": [
    {
      "AppKey": "default",
      "AppId": "your_app_id",
      "AppSecret": "your_app_secret",
      "BaseUrl": "https://open.feishu.cn",
      "TimeOut": 30,
      "RetryCount": 3,
      "EnableLogging": true,
      "IsDefault": true
    }
  ],
  "WebSocket": {
    "AutoReconnect": true,
    "MaxReconnectAttempts": 5,
    "ReconnectDelayMs": 5000,
    "HeartbeatIntervalMs": 30000,
    "EnableLogging": true
  }
}

🏗️ 架构设计

组件化架构

飞书WebSocket客户端采用组件化设计,将复杂功能拆分为专门的组件,提高代码的可维护性和扩展性。

架构设计

核心组件

组件职责特性
WebSocketConnectionManager连接管理器连接建立、断开、状态管理、重连机制
AuthenticationManager认证管理器WebSocket认证流程、状态管理、认证事件
MessageRouter消息路由器消息路由、版本检测(v1.0/v2.0)、处理器管理
BinaryMessageProcessor二进制消息处理器增量接收、ProtoBuf/JSON解析、内存优化

消息处理器

处理器说明
IMessageHandler消息处理器接口,提供通用反序列化功能
EventMessageHandler事件消息处理器,支持v1.0和v2.0版本
BasicMessageHandler基础消息处理器(Ping/Pong、认证、心跳)
FeishuWebSocketClient主客户端,组合所有组件

架构优势

  • 🎯 单一职责 - 每个组件专注特定功能,代码清晰易懂
  • 🔧 代码复用性提升 - 组件化设计,各组件可独立使用
  • 🧪 测试友好 - 每个组件可独立测试,依赖清晰
  • 🚀 扩展性提升 - 新功能通过添加组件实现,配置灵活

自定义消息处理器

csharp
// 创建自定义消息处理器
public class CustomMessageHandler : JsonMessageHandler
{
    public override bool CanHandle(string messageType)
        => messageType == "custom_type";

    public override async Task HandleAsync(string message, CancellationToken cancellationToken = default)
    {
        var data = SafeDeserialize<CustomMessage>(message);
        // 处理逻辑...
    }
}

// 注册到消息路由器
client.RegisterMessageProcessor(customMessageHandler);

文件结构

Mud.Feishu.WebSocket/
├── Core/                           # 核心组件
│   ├── WebSocketConnectionManager.cs  # 连接管理
│   ├── AuthenticationManager.cs      # 认证管理  
│   ├── MessageRouter.cs             # 消息路由
│   └── BinaryMessageProcessor.cs    # 二进制处理
├── Handlers/                       # 消息处理器
│   ├── IMessageHandler.cs          # 处理器接口
│   ├── EventMessageHandler.cs       # 事件消息处理
│   └── BasicMessageHandler.cs     # 基础消息处理
├── SocketEventArgs/                # 事件参数类
├── DataModels/                    # 数据模型
├── FeishuWebSocketClient.cs       # 主客户端
└── Examples/                      # 使用示例

🏗️ 服务注册方式

🚀 最简注册(推荐)

csharp
// 一行代码完成基础配置
builder.Services.CreateFeishuWebSocketServiceBuilder(builder.Configuration)
    .AddHandler<ReceiveMessageEventHandler>()
    .Build();

📋 注册多个事件处理器

csharp
// 支持链式调用,注册多个处理器
builder.Services.CreateFeishuWebSocketServiceBuilder(builder.Configuration)
    .AddHandler<ReceiveMessageEventHandler>()
    .AddHandler<UserCreatedEventHandler>()
    .AddHandler<MessageReadEventHandler>()
    .Build();

⚙️ 代码配置

csharp
// 使用委托配置选项
builder.Services.CreateFeishuWebSocketServiceBuilder(options =>
{
    options.AppId = "your_app_id";
    options.AppSecret = "your_app_secret";
    options.AutoReconnect = true;
    options.HeartbeatIntervalMs = 30000;
})
.AddHandler<ReceiveMessageEventHandler>()
.Build();

🔌 添加事件拦截器

csharp
// 添加内置日志拦截器和自定义拦截器
builder.Services.CreateFeishuWebSocketServiceBuilder(builder.Configuration)
    .AddInterceptor<LoggingEventInterceptor>()  // 内置日志拦截器
    .AddInterceptor<CustomTelemetryInterceptor>()  // 自定义遥测拦截器
    .AddHandler<ReceiveMessageEventHandler>()
    .Build();

🎯 三种处理器注册方式

csharp
// 方式1:类型注册(推荐)
.AddHandler<ReceiveMessageEventHandler>()

// 方式2:工厂注册
.AddHandler(sp => new FactoryEventHandler(
    sp.GetRequiredService<ILogger<FactoryEventHandler>>()))

// 方式3:实例注册
.AddHandler(new InstanceEventHandler())

🎯 事件处理器(策略模式)

内置事件处理器

处理器事件类型说明
ReceiveMessageEventHandlerim.message.receive_v1接收消息事件
UserCreatedEventHandlercontact.user.created_v3用户创建事件
MessageReadEventHandlerim.message.message_read_v1消息已读事件
UserAddedToGroupEventHandlerim.chat.member.user_added_v1用户加入群聊
UserRemovedFromGroupEventHandlerim.chat.member.user_deleted_v1用户离开群聊
DefaultFeishuEventHandler-未知事件类型处理
DepartmentCreatedEventHandlercontact.department.created_v3部门创建事件
DepartmentDeleteEventHandlercontact.department.deleted_v3部门删除事件

使用内置事件处理器基类

Mud.Feishu.Abstractions 提供了多个内置事件处理器基类,继承这些基类可以简化开发:

用户事件处理器(通用基类)

csharp
using Mud.Feishu.Abstractions;
using Mud.Feishu.WebSocket.Services;
using System.Text.Json;

namespace YourProject.Handlers;

/// <summary>
/// 演示用户事件处理器 - 实现通用接口
/// </summary>
public class DemoUserEventHandler : IFeishuEventHandler
{
    private readonly ILogger<DemoUserEventHandler> _logger;
    private readonly DemoEventService _eventService;

    public DemoUserEventHandler(ILogger<DemoUserEventHandler> logger, DemoEventService eventService)
    {
        _logger = logger ?? throw new ArgumentNullException(nameof(logger));
        _eventService = eventService ?? throw new ArgumentNullException(nameof(eventService));
    }

    public string SupportedEventType => "contact.user.created_v3";

    public async Task HandleAsync(EventData eventData, CancellationToken cancellationToken = default)
    {
        if (eventData == null)
            throw new ArgumentNullException(nameof(eventData));

        try
        {
            // 解析用户数据
            var userData = ParseUserData(eventData);

            // 记录事件到服务
            await _eventService.RecordUserEventAsync(userData, cancellationToken);

            // 模拟业务处理
            await ProcessUserEventAsync(userData, cancellationToken);

            _logger.LogInformation("✅ [用户事件] 用户创建事件处理完成: {UserId}", userData.UserId);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "❌ [用户事件] 处理用户创建事件失败");
            throw;
        }
    }

    private UserData ParseUserData(EventData eventData)
    {
        var jsonElement = JsonSerializer.Deserialize<JsonElement>(eventData.Event?.ToString() ?? "{}");
        var userElement = jsonElement.GetProperty("user");

        return new UserData
        {
            UserId = userElement.GetProperty("user_id").GetString() ?? "",
            UserName = userElement.GetProperty("name").GetString() ?? "",
            Email = TryGetProperty(userElement, "email") ?? "",
            Department = TryGetProperty(userElement, "department") ?? "",
            CreatedAt = DateTime.UtcNow,
            ProcessedAt = DateTime.UtcNow
        };
    }

    private static string? TryGetProperty(JsonElement element, string propertyName)
    {
        return element.TryGetProperty(propertyName, out var value) ? value.GetString() : null;
    }
}

/// <summary>
/// 用户数据模型
/// </summary>
public class UserData
{
    public string UserId { get; init; } = string.Empty;
    public string UserName { get; init; } = string.Empty;
    public string Email { get; init; } = string.Empty;
    public string Department { get; init; } = string.Empty;
    public DateTime CreatedAt { get; init; }
    public DateTime ProcessedAt { get; init; }
}

部门事件处理器(继承专用基类)

csharp
using Mud.Feishu.Abstractions;
using Mud.Feishu.Abstractions.DataModels.Organization;
using Mud.Feishu.Abstractions.EventHandlers;
using Mud.Feishu.WebSocket.Services;

namespace YourProject.Handlers;

/// <summary>
/// 演示部门创建事件处理器 - 继承 DepartmentCreatedEventHandler 基类
/// </summary>
public class DemoDepartmentEventHandler : DepartmentCreatedEventHandler
{
    private readonly DemoEventService _eventService;

    public DemoDepartmentEventHandler(ILogger<DemoDepartmentEventHandler> logger, DemoEventService eventService) : base(logger)
    {
        _eventService = eventService ?? throw new ArgumentNullException(nameof(eventService));
    }

    protected override async Task ProcessBusinessLogicAsync(
        EventData eventData,
        ObjectEventResult<DepartmentCreatedResult>? departmentData,
        CancellationToken cancellationToken = default)
    {
        if (eventData == null)
            throw new ArgumentNullException(nameof(eventData));

        _logger.LogInformation("[部门事件] 开始处理部门创建事件: {EventId}", eventData.EventId);

        try
        {
            // 记录事件到服务
            await _eventService.RecordDepartmentEventAsync(departmentData.Object, cancellationToken);

            // 模拟业务处理
            await ProcessDepartmentEventAsync(departmentData.Object, cancellationToken);

            _logger.LogInformation("[部门事件] 部门创建事件处理完成: {DepartmentId}", departmentData.Object.DepartmentId);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "[部门事件] 处理部门创建事件失败");
            throw;
        }
    }

    private async Task ProcessDepartmentEventAsync(DepartmentCreatedResult departmentData, CancellationToken cancellationToken)
    {
        _logger.LogDebug("🔄 [部门事件] 开始处理部门数据: {DepartmentId}", departmentData.DepartmentId);

        // 模拟异步业务操作
        await Task.Delay(100, cancellationToken);

        // 模拟验证逻辑
        if (string.IsNullOrWhiteSpace(departmentData.DepartmentId))
        {
            throw new ArgumentException("部门ID不能为空");
        }

        // 模拟权限初始化
        _logger.LogInformation("[部门事件] 初始化部门权限: {DepartmentName}", departmentData.Name);

        // 模拟更新统计信息
        _eventService.IncrementDepartmentCount();

        await Task.CompletedTask;
    }
}

/// <summary>
/// 演示部门删除事件处理器 - 继承 DepartmentDeleteEventHandler 基类
/// </summary>
public class DemoDepartmentDeleteEventHandler : DepartmentDeleteEventHandler
{
    public DemoDepartmentDeleteEventHandler(ILogger<DepartmentDeleteEventHandler> logger) : base(logger)
    {
    }

    protected override async Task ProcessBusinessLogicAsync(
        EventData eventData,
        DepartmentDeleteResult? eventEntity,
        CancellationToken cancellationToken = default)
    {
        if (eventData == null)
            throw new ArgumentNullException(nameof(eventData));

        if (eventEntity == null)
        {
            _logger.LogWarning("部门删除事件实体为空,跳过处理");
            return;
        }

        _logger.LogInformation("🗑️ [部门删除事件] 开始处理部门删除事件");
        _logger.LogDebug("部门删除事件详情: {@EventEntity}", eventEntity);

        await Task.CompletedTask;
    }
}

创建自定义事件处理器

csharp
public class CustomEventHandler : IFeishuEventHandler
{
    private readonly ILogger<CustomEventHandler> _logger;

    public CustomEventHandler(ILogger<CustomEventHandler> logger)
        => _logger = logger ?? throw new ArgumentNullException(nameof(logger));

    public string SupportedEventType => "custom.event.example_v1";

    public async Task HandleAsync(EventData eventData, CancellationToken cancellationToken = default)
    {
        if (eventData == null) throw new ArgumentNullException(nameof(eventData));

        _logger.LogInformation("🎯 处理自定义事件: {EventType}", eventData.EventType);
        
        // 实现你的业务逻辑
        await ProcessBusinessLogicAsync(eventData);
    }

    private async Task ProcessBusinessLogicAsync(EventData eventData)
    {
        // 数据库操作、外部API调用等
        await Task.CompletedTask;
    }
}

注册自定义处理器

csharp
// 注册处理器(多种方式)
builder.Services.CreateFeishuWebSocketServiceBuilder(builder.Configuration)
    .AddHandler<CustomEventHandler>()                    // 类型注册
    .AddHandler(sp => new FactoryEventHandler(           // 工厂注册
        sp.GetRequiredService<ILogger<FactoryEventHandler>>()))
    .AddHandler(new InstanceEventHandler())               // 实例注册
    .Build();

事件拦截器(Interceptors)

事件拦截器允许在事件处理前后执行自定义逻辑,如日志记录、指标收集、权限验证等。

内置拦截器

LoggingEventInterceptor - 记录事件处理日志

csharp
builder.Services.CreateFeishuWebSocketServiceBuilder(builder.Configuration)
    .AddInterceptor<LoggingEventInterceptor>()  // 记录事件处理开始和结束
    .AddHandler<ReceiveMessageEventHandler>()
    .Build();

自定义拦截器

创建自定义拦截器需要实现 IFeishuEventInterceptor 接口:

csharp
using Mud.Feishu.Abstractions;

/// <summary>
/// 自定义遥测拦截器示例
/// </summary>
public class CustomTelemetryInterceptor : IFeishuEventInterceptor
{
    private readonly ILogger<CustomTelemetryInterceptor> _logger;

    public CustomTelemetryInterceptor(ILogger<CustomTelemetryInterceptor> logger)
        => _logger = logger;

    /// <summary>
    /// 事件处理前拦截
    /// </summary>
    /// <returns>返回 false 将中断事件处理流程</returns>
    public Task<bool> BeforeHandleAsync(string eventType, EventData eventData, CancellationToken cancellationToken = default)
    {
        _logger.LogInformation("[遥测] 事件开始: {EventType}, EventId: {EventId}", eventType, eventData.EventId);
        return Task.FromResult(true); // 返回 true 继续处理,false 中断
    }

    /// <summary>
    /// 事件处理后拦截
    /// </summary>
    public Task AfterHandleAsync(string eventType, EventData eventData, Exception? exception, CancellationToken cancellationToken = default)
    {
        if (exception == null)
        {
            _logger.LogInformation("[遥测] 事件成功: {EventType}", eventType);
        }
        else
        {
            _logger.LogError(exception, "[遥测] 事件失败: {EventType}", eventType);
        }
        return Task.CompletedTask;
    }
}

注册自定义拦截器

csharp
// 类型注册
.AddInterceptor<CustomTelemetryInterceptor>()

// 工厂注册
.AddInterceptor(sp => new CustomTelemetryInterceptor(
    sp.GetRequiredService<ILogger<CustomTelemetryInterceptor>>()))

// 实例注册
var interceptor = new CustomTelemetryInterceptor(logger);
.AddInterceptor(interceptor)

拦截器执行顺序

拦截器按注册顺序依次执行,完整流程:

WebSocket 事件到达

拦截器1: BeforeHandleAsync

拦截器2: BeforeHandleAsync

...

拦截器N: BeforeHandleAsync

[事件处理器处理事件]

拦截器N: AfterHandleAsync

...

拦截器2: AfterHandleAsync

拦截器1: AfterHandleAsync

处理完成

运行时动态注册

csharp
public class ServiceManager
{
    private readonly IFeishuEventHandlerFactory _factory;
    private readonly ILogger<ServiceManager> _logger;

    public ServiceManager(IFeishuEventHandlerFactory factory, ILogger<ServiceManager> logger)
    {
        _factory = factory;
        _logger = logger;
    }

    public void RegisterHandler()
    {
        var customHandler = new CustomEventHandler(_logger);
        _factory.RegisterHandler(customHandler);
        _logger.LogInformation("已注册自定义处理器: {HandlerType}", typeof(CustomEventHandler).Name);
    }
}

⚙️ 配置选项

WebSocket核心配置

选项类型默认值说明
AutoReconnectbooltrue自动重连
MaxReconnectAttemptsint5最大重连次数
ReconnectDelayMsint5000重连延迟(ms)
MaxReconnectDelayMsint30000最大重连延迟(ms)
HeartbeatIntervalMsint30000心跳间隔(ms)
ConnectionTimeoutMsint10000连接超时(ms)
InitialReceiveBufferSizeint4096初始接收缓冲区大小(字节)
EnableLoggingbooltrue启用日志
EnableMessageQueuebooltrue启用消息队列
MessageQueueCapacityint1000消息队列容量
EmptyQueueCheckIntervalMsint100空队列检查间隔(ms)
HealthCheckIntervalMsint60000健康检查间隔(ms)
MaxConcurrentMessageProcessingint10最大并发消息处理数

消息大小限制配置 (MessageSizeLimits)

选项类型默认值说明
MaxTextMessageSizeint1048576最大文本消息大小(字符)
MaxBinaryMessageSizelong10485760最大二进制消息大小(字节)

配置示例:

json
{
  "FeishuWebSocket": {
    "MessageSizeLimits": {
      "MaxTextMessageSize": 1048576,
      "MaxBinaryMessageSize": 10485760
    }
  }
}

事件去重配置 (EventDeduplication)

选项类型默认值说明
ModeEventDeduplicationModeInMemory去重模式(None/InMemory/Distributed)
CacheExpirationMsint86400000缓存过期时间(ms),默认24小时
CleanupIntervalMsint300000缓存清理间隔(ms),默认5分钟

去重模式说明:

  • None - 禁用去重(不推荐,仅用于特殊场景)
  • InMemory - 内存去重(单实例,默认)
  • Distributed - 分布式去重(需配置 IFeishuEventDistributedDeduplicator

配置示例:

json
{
  "FeishuWebSocket": {
    "EventDeduplication": {
      "Mode": "InMemory",
      "CacheExpirationMs": 86400000,
      "CleanupIntervalMs": 300000
    }
  }
}

🎯 高级用法

多环境配置

csharp
var webSocketBuilder = builder.Services.CreateFeishuWebSocketServiceBuilder(configuration);

if (builder.Environment.IsDevelopment())
{
    webSocketBuilder.ConfigureOptions(options => {
        options.EnableLogging = true;
        options.HeartbeatIntervalMs = 15000;
    });
}
else
{
    webSocketBuilder.ConfigureFrom(configuration, "Production:Feishu:WebSocket");
}

webSocketBuilder.AddHandler<DevEventHandler>()
    .AddHandler<ProdEventHandler>()
    .Build();

条件性处理器注册

csharp
builder.Services.CreateFeishuWebSocketServiceBuilder(configuration)
    .AddHandler<BaseEventHandler>()
    .Apply(webSocketBuilder => {
        if (configuration.GetValue<bool>("Features:EnableAudit"))
            webSocketBuilder.AddHandler<AuditEventHandler>();

        if (configuration.GetValue<bool>("Features:EnableAnalytics"))
            webSocketBuilder.AddHandler<AnalyticsEventHandler>();

        if (configuration.GetValue<bool>("Features:EnableTelemetry"))
            webSocketBuilder.AddInterceptor<TelemetryInterceptor>();
    })
    .Build();

配置Redis分布式去重

csharp
// 注册Redis分布式去重服务
builder.Services.AddFeishuRedisDeduplicators(builder.Configuration);

// 配置飞书WebSocket服务
builder.Services.CreateFeishuWebSocketServiceBuilder(builder.Configuration)
    .AddInterceptor<LoggingEventInterceptor>()
    .AddHandler<ReceiveMessageEventHandler>()
    .Build();

指定配置节名称

csharp
// 使用非默认配置节
builder.Services.CreateFeishuWebSocketServiceBuilder(
        configuration,
        sectionName: "CustomFeishu")  // 配置节名称
    .AddHandler<ReceiveMessageEventHandler>()
    .Build();

🔧 高级功能

手动连接控制

csharp
public class ConnectionService
{
    private readonly IFeishuWebSocketManager _manager;

    public ConnectionService(IFeishuWebSocketManager manager)
        => _manager = manager;

    // 连接管理
    public async Task StartAsync() => await _manager.StartAsync();
    public async Task StopAsync() => await _manager.StopAsync();
    public async Task ReconnectAsync() => await _manager.ReconnectAsync();
    
    // 消息操作
    public async Task SendMessageAsync(string message) 
        => await _manager.SendMessageAsync(message);
    
    // 事件订阅
    public void SubscribeEvents()
    {
        _manager.Connected += OnConnected;
        _manager.Disconnected += OnDisconnected;
        _manager.HeartbeatReceived += OnHeartbeat;
    }
}

📋 支持的事件类型

WebSocket 消息类型

  • ping / pong - 连接保活
  • heartbeat - 心跳消息
  • event - 业务事件
  • auth - 认证响应

主要业务事件

  • 消息: im.message.receive_v1, im.message.message_read_v1
  • 群聊: im.chat.member.user_added_v1, im.chat.member.user_deleted_v1
  • 用户: contact.user.created_v3, contact.user.updated_v3, contact.user.deleted_v3
  • 部门: contact.department.*_v3
  • 审批: approval.approval.*_v1
  • 日程: calendar.event.updated_v4
  • 会议: meeting.meeting.*_v1

📄 许可证

本项目遵循 MIT 许可证进行分发和使用。


🚀 立即开始使用飞书WebSocket客户端,构建稳定可靠的事件处理系统!